Home / 664,405.90-995,514.45-383,433.10

Finding the Fourth Proportional to 664,405.90, 995,514.45 and 383,433.10

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Solution

The fourth proportional to 664,405.90, 995,514.45 and 383,433.10 is: 574,518.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,405.90 : 995,514.45 = 383,433.10 : x
  2. Step 2: Convert to fraction form
    664,405.90/995,514.45 = 383,433.10/x
  3. Step 3: Cross multiply
    664,405.90x = 995,514.45 × 383,433.10
  4. Step 4: Simplify right side
    664,405.90x = 381,713,191,658.30
  5. Step 5: Solve for x
    x = 381,713,191,658.30/664,405.90
  6. Step 6: Final answer
    x = 574,518.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.